hard frost alerted this salon owner lisa skinner. >> it was chilly. every client -- i lit candles to sort of warm up the place. >> many people, even this afternoon bundled up. >> it's the coldest i can remember it here, but i'm from colorado and my 80-year-old mother said it was 13 below. >> in walnut creek, john fowler. >>> in san jose, the first two planes that took off had to be deiced before they could be cleared for ice, same story in oakland. >>> and we've got some very cool temperatures coming our way. last night, more record low temperatures, 26 degrees in kenfield. we tied our record in san francisco in 40 degrees. you're going to see temperatures mostly in the, you know, 40s for the most part. overnight lows are going to be much cooler. i'm going to talk about these forecast overnight lows, which are going to be where they are last night and then a chance of showers. >>> the frigid weather is prompting farmers to keep an eye on their citrus crops. a risk of freezing, citrus and avocado crops are vulnerable to the a arctic air. they won't kno